/* 品质感抛光 · 电话 / 动效 / 骨架 / 虚拟列表 */
.phone-viz-wrap {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 8px;
}
.phone-viz-wrap canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.phone-avatar-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
}
.phone-avatar.state-listen { box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.35); }
.phone-avatar.state-think { box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.4); animation: phoneThink 1.6s ease-in-out infinite; }
.phone-avatar.state-speak { box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.35); }
@keyframes phoneThink {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.03); opacity: 0.92; }
}
.phone-eq-bars {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  height: 22px;
  margin: 0 auto 8px;
}
.phone-eq-bars span {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent);
  transition: height 0.08s;
}
.phone-asr-badge {
  display: inline-block;
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-left: 6px;
}
.phone-interim { opacity: 0.75; border-style: dashed; }
.phone-interim::after {
  content: "▋";
  animation: cursorBlink 0.9s step-end infinite;
  margin-left: 2px;
}
@keyframes cursorBlink { 50% { opacity: 0; } }
.phone-permission-guide {
  text-align: center;
  padding: 12px;
  font-size: 0.78rem;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 12px;
  margin-bottom: 10px;
}
.voice-in-holding { color: var(--accent) !important; animation: phoneRing 0.8s ease-in-out infinite; }
.demo-voice-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
}
.demo-voice-chip {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel2);
  cursor: pointer;
}
.demo-voice-chip:hover { background: var(--hover-bg); }
.station-server-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  padding: 8px 14px;
  text-align: center;
  font-size: 0.78rem;
  background: rgba(251, 191, 36, 0.95);
  color: #422006;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}
.station-server-banner.is-visible { transform: translateY(0); }
.live-tutor-mode-badge[data-state="think"] {
  background: rgba(167, 139, 250, 0.2);
  color: #7c3aed;
  animation: phoneThink 1.6s ease-in-out infinite;
}
.station-skeleton { padding: 8px 0; }
.station-skeleton-row { margin-bottom: 14px; }
.station-skeleton-line {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--line) 25%, var(--hover-bg) 50%, var(--line) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  margin-bottom: 8px;
}
.station-skeleton-line.w80 { width: 80%; }
.station-skeleton-line.w60 { width: 60%; }
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
@keyframes staggerIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.stagger-in { animation: staggerIn 0.38s ease both; }
html.reduce-motion .stagger-in,
html.reduce-motion .phone-avatar.state-think,
html.reduce-motion .live-tutor-mode-badge[data-state="think"] {
  animation: none !important;
}
.map-path-glow {
  stroke-dasharray: 8 6;
  animation: mapPathFlow 1.2s linear infinite;
}
@keyframes mapPathFlow { to { stroke-dashoffset: -14; } }
.practice-card-flash.correct { animation: practiceFlash 0.45s ease; }
@keyframes practiceFlash {
  0%, 100% { box-shadow: none; }
  40% { box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.45); }
}
.feynman-boss-shake { animation: bossShake 0.35s ease; }
@keyframes bossShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
.review-flip-card.is-flipped .review-flip-back::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.35) 50%, transparent 60%);
  animation: reviewSweep 0.6s ease;
  pointer-events: none;
}
@keyframes reviewSweep { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

/* 复习卡片 · 掌握动效（线条圆形徽章 + 卡片/中心双震波 + XP 上浮） */
.review-flip-card.is-hero {
  position: relative;
}
.review-flip-card.is-hero.is-master-burst {
  overflow: visible;
  z-index: 4;
}
.review-master-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  aspect-ratio: 3 / 4;
  z-index: 30;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--radius) + 4px);
  overflow: visible;
}
.review-master-card-waves {
  position: absolute;
  inset: 0;
  border-radius: calc(var(--radius) + 4px);
  pointer-events: none;
}
.review-master-card-wave {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid rgba(74, 222, 154, 0.62);
  box-shadow:
    0 0 24px rgba(110, 231, 183, 0.32),
    inset 0 0 18px rgba(74, 222, 154, 0.12);
  transform-origin: center center;
  animation: reviewMasterCardWave 0.88s cubic-bezier(0.22, 0.55, 0.28, 1) both;
}
.review-master-card-wave:nth-child(2) {
  animation-delay: 0.1s;
  border-color: rgba(110, 231, 183, 0.48);
}
.review-master-card-wave:nth-child(3) {
  animation-delay: 0.22s;
  border-color: rgba(52, 211, 153, 0.42);
}
.review-master-card-wave--ghost {
  border-width: 3px;
  border-color: rgba(110, 231, 183, 0.3);
  filter: blur(6px);
  box-shadow: 0 0 36px rgba(74, 222, 154, 0.38);
}
.review-master-shockwaves {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  pointer-events: none;
  z-index: 1;
}
.review-master-wave {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 112px;
  height: 112px;
  margin: -56px 0 0 -56px;
  border-radius: 50%;
  border: 2px solid rgba(74, 222, 154, 0.78);
  box-shadow: 0 0 20px rgba(110, 231, 183, 0.35);
  animation: reviewMasterShockwave 0.82s cubic-bezier(0.22, 0.55, 0.25, 1) both;
}
.review-master-wave:nth-child(2) {
  animation-delay: 0.14s;
  border-color: rgba(110, 231, 183, 0.58);
}
.review-master-wave:nth-child(3) {
  animation-delay: 0.28s;
  border-color: rgba(52, 211, 153, 0.48);
}
.review-master-badge-stack {
  position: relative;
  z-index: 2;
  width: 118px;
  height: 118px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: reviewMasterBadgeIn 0.52s cubic-bezier(0.22, 1.25, 0.36, 1) both;
}
.review-master-badge {
  position: relative;
  width: 118px;
  height: 118px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.review-master-badge-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  box-sizing: border-box;
}
.review-master-badge-ring--outer {
  inset: 8px;
  border: 2.5px solid #4ade9a;
  box-shadow: 0 0 18px rgba(110, 231, 183, 0.45);
}
.review-master-badge-ring--outer::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  background: repeating-conic-gradient(
    from 12deg,
    #6ee7b7 0deg 2.5deg,
    transparent 2.5deg 30deg
  );
  mask: radial-gradient(circle, transparent 88%, #000 89%);
  -webkit-mask: radial-gradient(circle, transparent 88%, #000 89%);
  pointer-events: none;
}
.review-master-badge-deco {
  position: absolute;
  inset: 0;
  pointer-events: none;
  animation: reviewMasterDecoPop 0.55s cubic-bezier(0.22, 1.2, 0.36, 1) 0.08s both;
}
.review-master-deco {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: rotate(var(--deco-angle)) translateY(-62px);
  transform-origin: center 62px;
}
.review-master-deco--dot {
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  border-radius: 50%;
  background: #6ee7b7;
  box-shadow: 0 0 10px rgba(110, 231, 183, 0.85);
}
.review-master-deco--star {
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  background: #a7f3d0;
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
  filter: drop-shadow(0 0 6px rgba(167, 243, 208, 0.9));
}
.review-master-badge-core {
  position: relative;
  z-index: 2;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.review-master-badge-core iconify-icon {
  color: #22c55e;
  filter: drop-shadow(0 0 8px rgba(74, 222, 154, 0.55));
}
.review-master-label {
  font-weight: 800;
  font-size: 0.84rem;
  letter-spacing: 0.14em;
  line-height: 1;
  color: #16a34a;
}
.review-master-xp-float {
  position: absolute;
  top: 6px;
  right: -2px;
  z-index: 5;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #15803d;
  background: rgba(255, 255, 255, 0.92);
  border: 1.5px solid #6ee7b7;
  box-shadow: 0 4px 14px rgba(110, 231, 183, 0.38);
  animation: reviewMasterXpFloat 0.78s cubic-bezier(0.22, 1, 0.36, 1) 0.12s both;
  pointer-events: none;
}
.review-master-sparks {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}
.review-master-sparks i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: transparent;
  border: 1.5px solid rgba(110, 231, 183, 0.9);
  box-shadow: 0 0 10px rgba(167, 243, 208, 0.7);
  opacity: 0;
  animation: reviewMasterSpark 0.58s ease-out both;
}
.review-flip-card.is-master-burst .review-flip-inner {
  animation: reviewMasterCardPop 0.68s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes reviewMasterCardWave {
  0% {
    opacity: 0.75;
    transform: scale(1);
    filter: blur(0);
  }
  35% {
    opacity: 0.5;
    transform: scale(1.04);
  }
  100% {
    opacity: 0;
    transform: scale(1.14);
    filter: blur(5px);
  }
}
@keyframes reviewMasterShockwave {
  0% {
    opacity: 0.88;
    transform: scale(0.48);
    border-width: 3px;
  }
  28% {
    opacity: 0.62;
    transform: scale(0.92);
  }
  48% {
    opacity: 0.48;
    transform: scale(1.18);
  }
  68% {
    opacity: 0.28;
    transform: scale(1.42);
  }
  100% {
    opacity: 0;
    transform: scale(1.78);
    border-width: 1px;
  }
}
@keyframes reviewMasterBadgeIn {
  0% { opacity: 0; transform: scale(0.35) rotate(-10deg); }
  58% { opacity: 1; transform: scale(1.08) rotate(2deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}
@keyframes reviewMasterDecoPop {
  0% { opacity: 0; transform: scale(0.6); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes reviewMasterXpFloat {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.82);
  }
  25% {
    opacity: 1;
    transform: translateY(0) scale(1.05);
  }
  100% {
    opacity: 0;
    transform: translateY(-22px) scale(1);
  }
}
@keyframes reviewMasterSpark {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(var(--spark-angle)) translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(var(--spark-angle)) translateY(calc(-1 * var(--spark-dist))) scale(0.15);
  }
}
@keyframes reviewMasterCardPop {
  0% { filter: brightness(1); }
  40% { filter: brightness(1.12) drop-shadow(0 0 26px rgba(110, 231, 183, 0.55)); }
  100% { filter: brightness(1); }
}
@media (prefers-reduced-motion: reduce) {
  .review-flip-card.is-master-burst .review-flip-inner,
  .review-master-card-wave,
  .review-master-wave,
  .review-master-badge-stack,
  .review-master-badge-deco,
  .review-master-xp-float,
  .review-master-sparks i {
    animation: none !important;
  }
}

.graph-node-pulse { animation: graphPulse 0.5s ease; }
@keyframes graphPulse {
  0% { box-shadow: 0 0 0 0 rgba(90, 106, 98, 0.4); }
  100% { box-shadow: 0 0 0 12px rgba(90, 106, 98, 0); }
}
.ind-faq-virtual-spacer { width: 100%; }
.theme-swatch-preview {
  display: block;
  width: 100%;
  height: 28px;
  border-radius: 6px;
  margin-top: 4px;
  border: 1px solid var(--line);
}
.theme-swatch-preview.studio-preview {
  background: linear-gradient(180deg, #fff 60%, #0071e3 60%);
}
html.reduce-motion .map-path-glow { animation: none; }
html.reduce-motion .station-skeleton-line { animation: none; }
html.reduce-motion .section-enter { animation: none !important; }
html.reduce-motion .kb-peek-enter { animation: none !important; }
html.reduce-motion .sidebar-drop-panel,
html.reduce-motion .sidebar-dock-panel { animation: none !important; }
html.reduce-motion .map-star-incoming,
html.reduce-motion .map-star-main-hit,
html.reduce-motion .map-star-spark { animation: none !important; }
html.reduce-motion .narrate-tutor-eq span { animation: none !important; }
html.reduce-motion .phone-avatar.ringing { animation: none !important; }